Generally speaking, if there is only a minor cuticle, it is not necessary to use a band-aid. Just use iodine or alcohol to prevent infection. You can also apply a thin layer of purple potion so that the wound can crust and dry after about two or three days.
If the skin wound is relatively deep and is improperly treated, the wound needs to be rinsed with clean water and then simply bandaged with a bandage. But the package time should not be too long, it is best not to exceed two days.
When in use, tear the package, apply the middle absorbent pad to the wound, then remove the cover film at both ends and fix the position with tape.